Featured Downloads
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Voltage Standing Wave Ratio (VSWR) Explained
9/12/2016
Explore the evolution of VSWR from its humble beginnings in telegraph lines to its vital role in modern RF engineering, illuminating its practical applications and underlying principles.
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Boosting Weak Emissions Measurements
9/12/2016
In order to boost signal levels from antennas to receivers in an emissions test set-up, an engineer can use an RF preamplifier combined with an antenna in order to create an active antenna.
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Checklist On The 10 Factors You Need To Consider When Selecting An EMC Antenna
9/12/2016
The antenna is one of the least understood components in an EMC test instrumentation set-up, and a poor choice of antenna(s) can lead to multiple problems including erroneous test data, failed tests, lengthy or difficult test procedures, and challenges with repeatability.
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Antenna Terms And Definitions
2/10/2009
A.H. Systems manufactures a complete line of affordable, reliable, individually calibrated EMC test antennas, preamplifiers, current probes and low-loss, high-frequency cables that satisfy FCC, MIL-STD, VDE, IEC, and SAE testing standards. This is a list of commonly used terms in the EMC community and their definitions.
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Selecting Antenna/Power Amplifier Combinations
Although somewhat dependent upon the existing test setup, there are many approaches to upgrading a test facility in readiness for the new RF immunity standard. This article provides guidelines for determining how to meet the requirement.
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A Primer On Antenna Near-Field And Far-Field For The Practical Engineer
Antenna regions are defined as near-field and far-field. The boundary between them is determined by four common methods, which depend on use cases and acceptable error levels.
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Practical Overview Of Antenna Parameters
There are a variety of standardized methods for describing antenna parameters, and this article aims to provide an overview of key antenna parameters and relevant background.